聚乙烯绝缘电线包皮生产线变频调速系统设计

发布时间：2018-01-08 16:25

本文关键词：聚乙烯绝缘电线包皮生产线变频调速系统设计　出处：《西安科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着国家改革步伐的推进,深化科技体制改革也正伴随着改革的春风在我国科技工业领域不断深入。在我国聚乙烯绝缘电缆包皮生产线领域,如何对生产过程进行合理的调控,从而更好的提高生产效率和产品质量成为同行业所面临的亟待解决的问题。本课题针对榆林学院的聚乙烯绝缘电线包皮生产线电机调速系统,采用作为控制器,设计了三相异步电动机自整定调速控制系统。对三相交流电动机的工作原理分析,对异步电动机转矩转速特性及负载转矩特性、磁通恒定时转矩转速特性、定子电压恒定时转矩转速特性进行比较,并对影响卷线质量的主要因素进行了分析,确定了采用对卷线机进行控制的方案。在对控制系统的硬件结构进行设计的同时增加了系统主回路的过压、欠压、超载、过热、光电编码器回馈断线、制动异常等保护。其中由软硬件配合对故障信号进行检测,一旦出现保护信号,则通过软件控制逻辑立即发出封锁驱动的信号。设计了自整定的控制算法对卷线机的主电机进行实时控制。经实验测试验证,并与常规的控制效果进行对比,自整定方式所确定的控制器参数使系统本身的控制性能得到大幅提高,且运行安全、可靠、动作准确。卷线机系统采用(小型的可编程控制器),通过设计软件程控实现对电机的运行速度即转速的调节,使其能够按照慢速、中速、快速的状态来运转;当生产线生产出来的电线出现脱皮,或保护套覆盖不完全的情况时,便对生产线电机进行减速调节;当在单丝退火以及类似生产环节中,出现的由于电机运行速度过慢而造成的电线外皮过厚、拥包或塑料挤出口损坏等各类问题时,便对电机转速进行加速调节;这样便可满足实际生产过程的需求,从而也达到本次设计的目的。
[Abstract]:With the national reform, deepen the reform of science and technology is also accompanied by the spring breeze of reform in China's science and technology industry development in our country. The polyethylene insulated cable wrapping production line, how to reasonable regulation of the production process, so as to improve the production efficiency and product quality has become an urgent problem with the industry the motor speed control system. This paper insulated wire wrapping production line for the Yulin University using polyethylene, as the controller design of three-phase asynchronous motor self tuning control system. Analysis on the working principle of three alternating current motor, the torque speed characteristics and load torque characteristics of asynchronous motor, the torque speed characteristics of constant flux, comparison the stator voltage is constant torque speed characteristic, and the main factors affecting the quality of the winding is analyzed, determine the use of To control the coiling machine. In the hardware structure of the control system design and increase the system main circuit overvoltage, undervoltage, overload, overheating, photoelectric encoder feedback disconnection, abnormal braking protection. By combining software and hardware to detect the fault signal, once the protection signal is controlled by the software logic signal blocking driving. Immediately designed a self-tuning algorithm of the main motor winding machine for real-time control. Through experimental verification, and compared with the control effect of the conventional controller, determining the parameters self-tuning the control performance of the system itself has been greatly improved, and the safe operation. Reliable, accurate action. The winding machine system (programmable controller small), through the design of software programmable speed of the motor speed control, so that it can in accordance with slow speed, Fast running state; when the production line produced by the wire peeling, protective sleeve or incomplete coverage of the situation, then the production line for motor speed regulation; when the filament annealing and similar production processes, the running speed of the motor due to the slow wire skin is too thick, or hold the bag the plastic extrusion damage and other problems, will accelerate to adjust the motor speed; it can meet the demand of practical production process, so as to achieve the purpose of this design.

【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ325.12;TM921.51

【相似文献】